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	<a href="http://khan.github.io/KaTeX/" target="_blank">http://khan.github.io/KaTeX/</a>
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	<a href="http://meta.wikimedia.org/wiki/Help:Displaying_a_formula"
		target="_blank">http://meta.wikimedia.org/wiki/Help:Displaying_a_formula</a>
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	<span class="katex">a^2</span>
	<span class="katex">a^{2+2}</span>
	<span class="katex">a_2</span>
	<span class="katex">{x_2}^3</span>
	<span class="katex">x_2^3</span>
	<span class="katex">10^{10^{8}}</span>
	<span class="katex">a_{i,j}</span>
	<span class="katex">_nP_k</span>
	<span class="katex">E=MC^2</span>
	<span class="katex">\left \{ \frac{a}{b} \right \} \quad \left
		\lbrace \frac{a}{b} \right \rbrace</span>
	<span class="katex">\left [ \frac{a}{b} \right ] \quad \left
		\lbrack \frac{a}{b} \right \rbrack</span>
	<span class="katex">\left ( \frac{a}{b} \right )</span>
	<span class="katex">\left \langle \frac{a}{b} \right \rangle</span>
	<span class="katex">x > y = 100</span>
	<span class="katex">c = \pm\sqrt{a^2 + b^2}</span>
	<span class="katex">\left . \frac{A}{B} \right \} \to X</span>
	<span class="katex">\left / \frac{a}{b} \right \backslash</span>
	<span class="katex">\left \lfloor \frac{a}{b} \right \rfloor
		\left \lceil \frac{c}{d} \right \rceil</span>
	<span class="katex">\frac{1}{2}=0.5</span>
	<span class="katex">\dfrac{k}{k-1} = 0.5</span>
	<span class="katex">\dbinom{n}{k} \binom{n}{k}</span>
	<span class="katex">\oint_C x^3\, dx + 4y^2\, dy</span>
	<span class="katex">\bigcap_1^n p \bigcup_1^k p</span>
	<span class="katex">\phi_n(\kappa) = \frac{1}{4\pi^2\kappa^2}
		\int_0^\infty \frac{\sin(\kappa R)}{\kappa R} \frac{\partial}{\partial
		R} \left[R^2\frac{\partial D_n(R)}{\partial R}\right]\,dR</span>
	<span class="katex">\sum_{m=1}^\infty\sum_{n=1}^\infty\frac{m^2\,n}
		{3^m\left(m\,3^n+n\,3^m\right)}</span>
	<span class="katex">e^{i \pi} + 1 = 0</span>
	<span class="katex">\left ( \frac{1}{2} \right )</span>
	<span class="katex">x_{1,2}=\frac{-b\pm\sqrt{\color{Red}b^2-4ac}}{2a}</span>
	<span class="katex">{\color{Blue}x^2}+{\color{YellowOrange}2x}-{\color{OliveGreen}1}</span>
	<span class="katex">\textstyle \sum_{k=1}^N k^2</span>
	<span class="katex">\dfrac{ \tfrac{1}{2}[1-(\tfrac{1}{2})^n] }{
		1-\tfrac{1}{2} } = s_n</span>
	<span class="katex">\binom{n}{k}</span>
	<span class="katex">0+1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+\cdots</span>
	<span class="katex">f(x) = \int_{-\infty}^\infty \hat
		f(\xi)\,e^{2 \pi i \xi x} \,d\xi</span>
	<span class="katex">\displaystyle \frac{1}{\Bigl(\sqrt{\phi
		\sqrt{5}}-\phi\Bigr) e^{\frac25 \pi}} = 1+\frac{e^{-2\pi}}
		{1+\frac{e^{-4\pi}} {1+\frac{e^{-6\pi}} {1+\frac{e^{-8\pi}} {1+\cdots}
		} } }</span>
	<span class="katex">\displaystyle \left( \sum_{k=1}^n a_k b_k
		\right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n
		b_k^2 \right)</span>
	<span class="katex">\displaystyle 1 +
		\frac{q^2}{(1-q)}+\frac{q^6}{(1-q)(1-q^2)}+\cdots =
		\prod_{j=0}^{\infty}\frac{1}{(1-q^{5j+2})(1-q^{5j+3})}, \quad\quad
		\text{for }\lvert q\rvert<1.</span>
	<span class="katex">2 = \left( \frac{\left(3-x\right) \times
		2}{3-x} \right)</span>
	<span class="katex">S_{\text{new}} = S_{\text{old}} - \frac{
		\left( 5-T \right) ^2} {2}</span>
	<span class="katex">x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}</span>
	<span class="katex">ax^2 + bx + c = 0\,</span>
	<span class="katex">\int_a^x \!\!\!\int_a^s f(y)\,dy\,ds =
		\int_a^x f(y)(x-y)\,dy</span>
	<span class="katex">\sum_{m=1}^\infty\sum_{n=1}^\infty\frac{m^2\,n}
		{3^m\left(m\,3^n+n\,3^m\right)}</span>
	<span class="katex">u'' + p(x)u' + q(x)u=f(x),\quad x>a</span>
	<span class="katex">|\bar{z}| = |z|, |(\bar{z})^n| = |z|^n,
		\arg(z^n) = n \arg(z)</span>
	<span class="katex">\lim_{z\rightarrow z_0} f(z)=f(z_0)</span>
	<span class="katex">\phi_n(\kappa) =
		0.033C_n^2\kappa^{-11/3},\quad \frac{1}{L_0}\ll\kappa\ll\frac{1}{l_0}</span>
	<span class="katex">\sum_{k=1}^N k^2</span>
	<span class="katex">\textstyle \sum_{k=1}^N k^2</span>
	<span class="katex">\prod_{i=1}^N x_i</span>
	<span class="katex">\textstyle \prod_{i=1}^N x_i</span>
	<span class="katex">\coprod_{i=1}^N x_i</span>
	<span class="katex">\textstyle \coprod_{i=1}^N x_i</span>
	<span class="katex">\int_{1}^{3}\frac{e^3/x}{x^2}\, dx</span>
	<span class="katex">\int_C x^3\, dx + 4y^2\, dy</span>
	<span class="katex">{}_1^2\!\Omega_3^4</span>
	<span class="katex">x', y'', f', f''</span>
	<span class="katex">\dot{x}, \ddot{x}</span>
	<span class="katex">\hat a \ \bar b \ \vec c</span>
	<span class="katex">\lessapprox \lesssim \eqslantless \leqslant
		\leqq \geqq \geqslant \eqslantgtr \gtrsim \gtrapprox</span>
	<span class="katex">\smile \frown \wr \triangleleft
		\triangleright \infty \bot \top</span>
	<span class="katex">\leftarrow \gets \rightarrow \to \nleftarrow
		\nrightarrow \leftrightarrow \nleftrightarrow \longleftarrow
		\longrightarrow \longleftrightarrow</span>
	<span class="katex">\uparrow \downarrow \updownarrow \Uparrow
		\Downarrow \Updownarrow \nearrow \searrow \swarrow \nwarrow</span>
	<span class="katex">\rightharpoonup \rightharpoondown
		\leftharpoonup \leftharpoondown \upharpoonleft \upharpoonright
		\downharpoonleft \downharpoonright \rightleftharpoons
		\leftrightharpoons</span>
	<span class="katex">\curvearrowleft \circlearrowleft \Lsh
		\upuparrows \rightrightarrows \rightleftarrows \Rrightarrow
		\rightarrowtail \looparrowright</span>
	<span class="katex">\curvearrowright \circlearrowright \Rsh
		\downdownarrows \leftleftarrows \leftrightarrows \Lleftarrow
		\leftarrowtail \looparrowleft</span>
	<span class="katex">\mapsto \longmapsto \hookrightarrow
		\hookleftarrow \multimap \leftrightsquigarrow \rightsquigarrow</span>
	<span class="katex">\Diamond \Box \triangle \angle \perp \mid
		\nmid \| 45^\circ</span>
	<span class="katex"> \sim \approx \simeq \cong \dot=
		\overset{\underset{\mathrm{def}}{}}{=}</span>
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